Kinetics of scalar wave fields in random media

Wave Motion ◽  
2005 ◽  
Vol 43 (2) ◽  
pp. 132-157 ◽  
Author(s):  
Guillaume Bal
Keyword(s):  
Random Media ◽  
Scalar Wave ◽  
Wave Fields ◽  
Kinetics Of

Angular anisotropy and kinetics of light backscattering from discrete random media

1992 ◽  
Author(s):  
Valery L. Bogdanov ◽  
Yurij I. Kopilevich ◽  
George V. Lukomskij ◽  
George B. Sochilin
Keyword(s):  
Random Media ◽  
Angular Anisotropy ◽  
Discrete Random Media ◽  
Kinetics Of

Path-linking interpretation of Kirchhoff diffraction

1995 ◽  
Vol 450 (1938) ◽  
pp. 51-65 ◽  
Keyword(s):  
Exact Solution ◽  
Wave Equation ◽  
Wave Field ◽  
Diffraction Field ◽  
Scalar Wave ◽  
Wave Fields ◽  
Linking Number ◽  
Diffraction Integral ◽  
Pass Through ◽  
Kirchhoff Diffraction Integral

The Kirchhoff-diffraction integral is often used to describe the (scalar) wave field from a monochromatic point source in the presence of ‘opaque’ screens. Despite criticisms that can be made of its ‘derivation’, the Kirchhoff field is an exact solution of the wave equation, and exactly obeys definite, though unusual, boundary conditions (Kottler 1923, 1965). Here, the path-integral picture of wave fields is used to interpret the Kirchhoff-diffraction field in terms of all conceivable propagation paths, whether or not they pass through the opaque screens. Specifically, it is noted that the Kirchhoff field equals Ʃ(1 ─ m )ψ m , where the sum is over all integers m , and ψ m is the wave field due to all paths from the source to the field point for which the number of outward screen crossings minus the number of backwards screen crossings is m . Expressed more topologically, m is the total linking number of a path, when closed by any unobstructed path, with the screen edge lines. Other models of diffraction by screens are compared with Kirchhoff diffraction in the path interpretation.

JDiffraction: A GPGPU-accelerated JAVA library for numerical propagation of scalar wave fields

2017 ◽  
Vol 214 ◽  
pp. 128-139 ◽  
Author(s):  
Pablo Piedrahita-Quintero ◽  
Carlos Trujillo ◽  
Jorge Garcia-Sucerquia
Keyword(s):  
Scalar Wave ◽  
Wave Fields ◽  
Java Library

Plane-Wave Representations for Scalar Wave Fields

SIAM Review ◽  
1973 ◽  
Vol 15 (4) ◽  
pp. 765-786 ◽  
Author(s):  
A. J. Devaney ◽  
George C. Sherman
Keyword(s):  
Plane Wave ◽  
Scalar Wave ◽  
Wave Fields
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